Barbara Baldavin played the phaser specialist Angela Martine in Balance of Terror and Shore Leave, and returned as a communications officer in the final episode, Turnabout Intruder.
Barbara Baldavin appeared in three episodes of The Original Series. In Balance of Terror she is Specialist Angela Martine, whose wedding to Robert Tomlinson is interrupted by the Romulan attack on the Neutral Zone outposts; Tomlinson is killed in the phaser control room, and the episode closes with Kirk consoling her in the ship's chapel.
The character returns in Shore Leave as a member of the landing party on the amusement-park planet, where she is knocked senseless while fleeing a strafing aircraft conjured from a crewmate's imagination.
In Turnabout Intruder Baldavin plays Lisa, the communications officer on duty in place of Uhura. She later moved behind the camera and worked in television casting.